He received a silver medal with the Finnish relay team at the 2003 World Orienteering Championships in Rapperswil/Jona, and again in 2006 in Aarhus.

[2] He received a bronze medal in relay at the 2007 World Championships in Kyiv.

[3] At the 2009 World Orienteering Championships in Miskolc he won a bronze medal in the relay, together with Topi Anjala and Tero Föhr.

[4] His wife is Czech orienteer Vendula Klechová.

[5] Haldin won the Jukola relay three times, in 2003, 2010 and 2011, for Halden SK.